Patents by Inventor Bijan Kumar Panda

Bijan Kumar Panda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • LENALIDOMIDE PROCESS
    Publication number: 20240327374
    Abstract: The present invention provides to an improved process for the preparation of new and high purity crystalline Form SRA of 3-(4-amino-1-oxoisoindolin-2-yl) piperidine-2, 6-dione of formula (I) The pure crystalline Form SRA of compound of formula (I) obtained by the process of present invention is having purity of greater than 99.9% (area % by HPLC). Lenalidomide (I) pure crystalline Form SRA is useful in the treatment of cancer, inflammatory diseases, autoimmune diseases and Multiple myeloma.
    Type: Application
    Filed: March 31, 2023
    Publication date: October 3, 2024
    Inventors: Akshay Kant Chaturvedi, Mohammad Baqer, Bijan Kumar Panda, Satyaveer, Deepali Chaturvedi, Saroj Bala, Yogesh Tripathi
  • Process for preparing highly pure temozolomide
    Patent number: 11597731
    Abstract: The present invention provides a new process for preparation of imidazo-tetrazine class of chemical entity useful as anticancer agent. The present invention provides a commercially and economically viable process for preparation of Temozolomide of formula (VI). Present invention also relates to an intermediate compound of formula (III) and its preparation useful in the process for preparing Temozolomide.
    Type: Grant
    Filed: July 17, 2021
    Date of Patent: March 7, 2023
    Assignee: SHIVALIK RASAYAN LIMITED
    Inventors: Akshay Kant Chaturvedi, Bijan Kumar Panda, Amit Kumar, Deepali Chaturvedi
  • PROCESS FOR PREPARING HIGHLY PURE TEMOZOLOMIDE
    Publication number: 20230041538
    Abstract: The present invention provides a new process for preparation of imidazo-tetrazine class of chemical entity useful as anticancer agent. The present invention provides a commercially and economically viable process for preparation of Temozolomide of formula (VI). Present invention also relates to an intermediate compound of formula (III) and its preparation useful in the process for preparing Temozolomide.
    Type: Application
    Filed: July 17, 2021
    Publication date: February 9, 2023
    Applicant: SHIVALIK RASAYAN LIMITED
    Inventors: AKSHAY KANT CHATURVEDI, BIJAN KUMAR PANDA, AMIT KUMAR, DEEPALI CHATURVEDI
  • Intermediate and process for preparing of ?- anomer enriched 21-deoxy,21,21-difluoro-D-ribofuranosyl nucleosides
    Patent number: 7235647
    Abstract: The present invention provides a highly stereoselective, simple and economical glycosylation process for preparation of ?-anomer enriched 21-deoxy-21,21-D-ribofuranosyl difluoronucleosides of formula (II), and physiologically acceptable slats thereof, in particular, the ?-enriched anomer of gemcitabine hydrochloride of formula (IIb) in purity of >99% is provided through utilization of a novel trichloroacetimidate of formula (I).
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: June 26, 2007
    Assignee: Dabur Pharma Limited
    Inventors: Golak Chandra Maikap, Deependra Bhatt, Bijan Kumar Panda